LANSING, Mich. – Americans for Prosperity, the conservative advocacy group supported by the Koch brothers, has launched an effort to torpedo a proposed settlement in the Detroit bankruptcy case, potentially complicating chances for completing the deal just as its prospects seemed to be improving.

The organization, formed to fight big government and spending, is contacting 90,000 conservatives in Michigan and encouraging them to rally against a plan to provide $195 million in state money to help settle Detroit pension holders’ claims in the case, a key element of the deal.

Read the complete story at the Associated Press.